A5030280627- Pulsars and Gravitational Waves Research
- Geophysics and Gravity Measurements
- Astrophysical Phenomena and Observations
- Relativity and Gravitational Theory
- Gamma-ray bursts and supernovae
- Cosmology and Gravitation Theories
- Black Holes and Theoretical Physics
- Computational Physics and Python Applications
- Particle Accelerators and Free-Electron Lasers
- Geophysics and Sensor Technology
- Distributed and Parallel Computing Systems
- Experimental Learning in Engineering
- Learning Styles and Cognitive Differences
- History and Developments in Astronomy
- Science Education and Pedagogy
- Engineering Applied Research
- Neural Networks and Reservoir Computing
- Innovative Teaching Methods
- Mathematical and Theoretical Analysis
- Earthquake Detection and Analysis
- Neuroscience, Education and Cognitive Function
- Blind Source Separation Techniques
- Metallurgy and Material Forming
- Inertial Sensor and Navigation
- Mathematical Analysis and Transform Methods
Marshall University
2011-2024
Astrophysical observations of the cosmos allow us to probe extreme physics and answer foundational questions on our universe. Modern astronomy is increasingly operating under a holistic approach, probing same question with multiple diagnostics including how sources vary over time, they appear across electromagnetic spectrum, through their other signatures, gravitational waves, neutrinos, cosmic rays, dust Earth. are now reaching point where approximate models insufficient. Key interest...
Abstract Gravitational Wave (GW) signals from Binary Neutron Star (BNS) mergers provide critical insights into the properties of matter under extreme conditions. Due to scarcity observational data, Numerical Relativity (NR) simulations are indispensable for exploring these phenomena, without replacing need confirmation. However, simulating BNS is a formidable challenge, and ensuring consistency, reliability or convergence, especially in post-merger, remains work progress. 
In this...
Gravitational waves are produced by orbiting massive binary objects, such as black holes and neutron stars, propagate ripples in the very fabric of spacetime. As carry off orbital energy, two bodies spiral into each other eventually merge. They described Einstein's equations General Relativity. For early phase orbit, called inspiral, Einstein can be linearized solved through analytical approximations, while for late phase, near merger, we need to solve fully nonlinear on supercomputers. In...
Merging black holes produce the loudest signal in detectors. However, this is most difficult to accurately predict with analytical techniques. Only computer simulations can account for nonlinear physics during collision, but they are inherently complex, costly, and affected by numerical errors. In order bypass problem, two models merger have been developed: Implicit Rotating Source (IRS) newer Backwards one Body (BoB). work, we assess performance of BoB model comparing it older IRS data,...
Gravitational waves (GW) from eccentric binaries have intricate signals encoding important features about the location, creation and evolution of sources. Eccentricity shortens merger time, making emitted GW statistically predominant in observed data once detectors will reach required sensitivity. We present a novel implementation fully analytical templates binary black hole (BBH) mergers within \texttt{Wolfram Mathematica} software. increase accuracy by identifying minimizing possible...
Neutron star mergers are astrophysical `gold mines,' synthesizing over half of the elements heavier than iron through rapid neutron capture nucleosynthesis. The observation binary merger GW170817, detected both in gravitational waves and electromagnetic radiation, marked a breakthrough. One component this event, gamma ray burst GRB 170817A, has an unresolved aspect: characteristics its prompt gamma-ray emission spectrum. In work, we propose that spectra such GRBs may be influenced by...
Neutron star mergers are astrophysical “gold mines,” synthesizing over half of the elements heavier than iron through rapid neutron capture nucleosynthesis. The observation binary merger GW170817, detected both in gravitational waves and electromagnetic radiation, marked a breakthrough. One component this event, gamma ray burst GRB 170817A, has an unresolved aspect: characteristics its prompt gamma-ray emission spectrum. In work, we investigate that spectra such GRBs may be influenced by...
Gravitational waves produced by binary neutron star mergers offer a unique window into matter behavior under extreme conditions. In this context, we analytically model the effect of on gravitational from mergers. We start with black hole system, leveraging post-Newtonian formalism for inspiral and Backwards-one-Body merger. combine two methods to generate baseline waveform validate our results against numerical relativity simulations. Next, integrate tidal effects in phase amplitude account...
Gravitational Wave (GW) signals from Binary Neutron Star (BNS) mergers provide critical insights into the properties of matter under extreme conditions. Due to scarcity observational data, Numerical Relativity (NR) simulations are indispensable for exploring these phenomena. However, simulating BNS is a formidable challenge, and ensuring consistency, reliability or convergence, especially in post-merger, remains work progress. In this paper we assess performance current merger by analyzing...
Many astrophysical systems of interest to numerical relativity, such as rapidly rotating stars, black hole accretion disks, and core-collapse supernovae, exhibit near-symmetries. These generally consist a strongly gravitating central object surrounded by an disk, debris, ejecta. Simulations can efficiently exploit the near-axisymmetry these reducing number points in angular direction around near-symmetry axis, enabling efficient simulations over seconds-long timescales with minimal...
This chapter narrates the journey of developing and integrating computing into physics curriculum through three consecutive courses, each tailored to learners' level. It starts with entry-level "Physics Playground in Python" for high school freshman students no programming experience, designed spirit "Hello World" approach. At sophomore junior level, from all sciences engineering disciplines learn "Scientific Computing an environment based on "Two Bites at Every Apple" Ultimately, upper...